How much salt must be added to a glass of water for an egg to float? Hypothesis:
I believe it will take 5 tbsp. of salt to be added to water for an egg to float. My reason is that I think that 5 tbsp. of salt is very heavy and will make the water heavy enough to float the egg. I must make the water heavy enough to float the egg. If the water has enough salt it will float.
Materials Used:
Eggs – 2 medium sized chicken eggs (2.0oz each)
Natural Sea Salt
Iodized Salt (table salt)
700 ml Fresh water (room temperature)
3 - 1000ml tall cups
1 - 250ml measuring cup
1 – 1tbs Measuring spoon
1 - thermometer
Procedure:
Tuesday
1) Measure and label the tall cups with 100 – 700ml lines
2) Fill the cup with 700ml room temperature water from the tap.
3) Choose a raw, unbroken egg. Weighed the egg (2.0oz)
4) Place the egg gently into the water.
5) Watch and write down what happens
6) Add 1 tbs. of table salt to the water. Stir the water to help the salt dissolve into the water.
7) Continue to add 1 tbs. of table salt and stir at a time, until something happens.
8) Watch and write down what happens
9) Repeat #1 – 7 using sea salt this time
10) Take one of the salt water cups and pour out half.
11) Slowly add plain water to the 700ml line. Did not mix the water or stir.
12) Place an egg gently into the water.
13) Watch and write down what happens
Data and Observation:
Plain Water:
• I observed that the egg sank in plain water.
Table Salt:
• I observed that the egg stayed at the bottom of the cup when I added 1, 2, and 3 Tbsp. of table salt.
• I observed that when I added the 4th Tbsp. of table salt, the egg floated straight to the top of the water.
Sea Salt:
• I observed that the egg stayed at the bottom of the cup when I added 1 and 2 Tbsp. of sea salt.
• I observed that when I added the 3rd Tbsp. of sea salt, the egg floated straight to the top of the water.
Mixed Water:
• I observed that when I